Construction of railway-cars



(No Model.)

F. G. CALDWELL.

CONSTRUCTION OF RAILWAY CARS.

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UNITED STATES PATENT OFFICE.

FRANK G. CALDWELL, OF WHEELING, WEST VIRGINIA.

CONSTRUCTION OF RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 391,296, dated October16, 1888.

Application filed May 8, 1888. Serial No. 273,250.

To all whom it may concern.-

Be it known that I, FRANK G. CALDWELL, a citizen of the United States,residing at \Vheeling, in the county of Ohio and State of West Virginia,have invented new and useful Improvements in Construction of Railway-Gars, of which the following is aspecification.

My invention relates to iron roofing for railway-cars, and the purposethereof is to provide an improved construction of the sheathing-boardsand a novel and superior method of fastening the sheet-metal sectionsthereto without nailing to form a perfectly waterproof covering whichcannot blow off in heavy gales, which is light and strong, and notinjured by passage over the roof.

The invention consists in the several novel features of construction andnew combinations of parts, hereinafter fully described, and thendefinitely pointed out in the claims.

In the accompanying drawings, Figure 1 is an end elevation showing thegeneral outline of the several iron sections of which the roof is made.Fig. 2 is a perspective view of a fractional portion of a car-roof,showing the sheathing-boards and the manner in which they are formed andnailed to the purlin. Fig. 3 is a similar view showing the manner inwhich the iron is secured to the sheathing.

In the said drawings, the reference-numeral 1 designates the purlin of acar-roof of ordinary construction. Upon this timber the sheathing-boards2 and 2 are laid, out to suit theroofing, and nailed to the purlin, asshown in Fig. 3. The sheathingboards all have their longer upper edgesbeveled off at 3, and upon each alternate board or strip, 2, is formed again, 4, lying beneath the bevels 3. These sheathing-strips are laidupon the purlin in regular order, with a brief interval between theadjacent boards, and nails 5 are driven through said strips into thepurlin. Upon these sheathing-strips are slipped the sections of ironroofing, 6 and 7, the section 6 being placed upon the gained strip 2,while the section 7 is slipped upon the strip 2, which is simply beveledat 3. The section 6 conforms closely to the contour of the gained strip,having inwardlyturned edges 7, which lie in the gains 4. The sections 7are similarly formed,

save that they have longer inclined sides, 8,

(N0 model.)

then upward and outward, forming the free inclined edges 9. The doublehorizontal portions 10 beneath these free edges lie in the gains 4 0fthe adjacent strips, the free edges 9 lapping over upon the bevels 3,beneath the inclined edges of the section 6, the inwardlyturned edges ofthe latter lying in the double fold 10.

By this construction the iron sections may be secured without nailing,are wholly waterproof, and entirely secure against displace mentduringagale of wind. The roofing-sections are slipped into place fromeach side of the car-roof and join at the top or comb of the roof byoverlapping. The ends maybe turned down at the caves, and may be nailedat that point.

\Vhat I claim is 1. Acar-roof consisting of a series of sheathing-stripsbeveled upon their upper adjacent edges and each alternate strip gainedupon the lower edges, said strips being nailed to the purlin andprovided with iron sections slipped over the same and interlocking, substantially as described.

2. In a car-roof, the e0mbination,with a series of sheathing-strips,each having its upper parallel edges beveled and each alternate stripbeing gained upon its lower edges, of iron roofing-sections 6 and 7, theformer having the general contour of the gained strip, and the latterhaving in addition an outwardly-extended double fold, and free edgesinclined upward and outward over said fold, substantially as described.

3. In a car-roof, the combination, with the purlin 1, of the sheathingstrips 2 and 2, nailed thereto, all having bevels 3, and the strips 2,having also gains 4, the iron sections 6 and 7, the former following thecontour of the strip 2, and having inwardly-turned edges 7*, lying inthe gains4 and inclosing the edges 7,while the latter have inclinedsides 8, out- Wardly-extending double folds 10, lying in the gains 4,and the inclined free edges 9, lying underneath the adjacent inclinedportions of the section 6, substantially as described.

In testimony whereof I afifix my signature in presence of two witnesses.

FRANK G. CALDWELL.

Witnesses:

W. F. PETERSON, HARRY ADAMS.

